CN111456804A - Segmental transportation method for N00 super-long working face - Google Patents
Segmental transportation method for N00 super-long working face Download PDFInfo
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- CN111456804A CN111456804A CN202010311971.3A CN202010311971A CN111456804A CN 111456804 A CN111456804 A CN 111456804A CN 202010311971 A CN202010311971 A CN 202010311971A CN 111456804 A CN111456804 A CN 111456804A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000003245 coal Substances 0.000 claims abstract description 121
- 238000005065 mining Methods 0.000 claims abstract description 36
- 230000010006 flight Effects 0.000 claims description 10
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 241001155430 Centrarchus Species 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/002—Crushing devices specifically for conveying in mines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
- E21F13/063—Loading devices for use in mining
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Abstract
The disclosure relates to the technical field of mining, in particular to a segmented transportation method for an N00 super-long working face. Coal on the overlong working face is mined by a coal mining machine, falls onto a right-angle scraper conveyor and is transported away; the right-angle scraper machine comprises a first straight-going part, a turning part and a second straight-going part perpendicular to the first straight-going part, and the coal mining machine is connected to the first straight-going part in a sliding mode; the number of the right-angle scraper machines is multiple. The sectional transportation method comprises the following steps: starting coal mining by a coal mining machine located on a first right-angle scraper machine so that coal falls onto a first straight run portion of the first right-angle scraper machine; enabling the coal mining machine to span from the first right-angle scraper to the second right-angle scraper; and starting coal conveying by the first right-angle scraper so that the coal falling on the first straight-going part is conveyed to the conveying belt through the turning part and the second straight-going part of the first right-angle scraper in sequence. The segmental transportation method can overcome the problem of limited power of a scraper system, so that the ultra-long transportation of coal in the N00 construction method is realized.
Description
Technical Field
The disclosure relates to the technical field of mining, in particular to a segmented transportation method for an N00 super-long working face.
Background
The N00 construction method is characterized in that when mining of each coal face is carried out in a coal mining area, a part of a goaf is used for carrying out roof cutting and pressure relief to automatically form a roadway, the roadway does not need to be tunneled, a coal pillar does not need to be reserved, the cost can be reduced, resources can be saved, and the working efficiency and the profit can be further improved.
The scraper conveyor is used as transportation equipment essential to a working face and used for transporting coal mined by a coal mining machine, so that the labor intensity of workers can be reduced, and the working efficiency is improved.
At present, the power of a scraper system is limited, so that long-distance transportation cannot be realized, and the length of a coal face cannot be infinitely prolonged.
The above information disclosed in the background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute prior art that is known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a sectional transportation method for an N00 overlong working face, which can overcome the problem of limited power of a scraper system, thereby realizing overlong transportation of coal in an N00 construction method.
In order to achieve the purpose, the technical scheme adopted by the disclosure is as follows:
according to one aspect of the present disclosure, a staging method for an N00 ultralong face is provided, the coal on the ultralong face being mined by a coal mining machine and falling onto a right-angle scraper capable of transporting the coal falling thereon onto a transport belt, the coal mining machine being slidably connected to the right-angle scraper; the right-angle scraper machine comprises a first straight-going part, a second straight-going part and a turning part for connecting the first straight-going part and the second straight-going part, the coal mining machine is connected with the first straight-going part in a sliding mode, and the second straight-going part is perpendicular to the first straight-going part; the quantity of right angle scraper is a plurality of, and is a plurality of the right angle scraper is followed the slip direction of coal-winning machine arranges in proper order, and each the first straight portion of right angle scraper connects in the previous the portion of turning round of right angle scraper, its characterized in that, the segmentation transportation method includes:
initiating coal mining by said shearer located on a first of said right angle fliers such that coal on said ultralong face falls onto a first straight run of a first of said right angle fliers;
causing said shearer to traverse in said sliding direction from a first of said right angle flights to a second of said right angle flights;
and starting coal conveying by the first right-angle scraper so that the coal falling on the first straight part of the first right-angle scraper is conveyed to the conveying belt sequentially through the turning part and the second straight part of the first right-angle scraper.
In an exemplary embodiment of the disclosure, a connecting track is arranged between the turning part of the first right-angle scraper and the first straight part of the second right-angle scraper;
the shearer spans from the first straight portion of a first one of the right-angle scrapers to the first straight portion of a second one of the right-angle scrapers in the sliding direction via the connecting rails.
In an exemplary embodiment of the present disclosure, the connection rail includes a first rail close to and parallel to the lengthy work surface and a second rail far from the lengthy work surface and parallel to the first rail;
causing said shearer to traverse from a first of said right angle flights in said sliding direction to a second of said right angle flights, comprising:
mounting the first rail and the second rail;
driving the shearer to move so that the shearer can traverse through the first and second rails from the first straight portion of a first one of the right-angle scrapers to the first straight portion of a second one of the right-angle scrapers in the sliding direction.
In an exemplary embodiment of the present disclosure, before starting the coal transportation of the first right-angle scraper, the staging method further comprises:
and removing the second rail so that coal falling on the first straight portion of the first right-angle scraper can be conveyed to the second straight portion of the first right-angle scraper through the turning portion of the first right-angle scraper.
In an exemplary embodiment of the present disclosure, after detaching the second track, the staging method further includes:
and the first rail is disassembled to realize the recycling of the first rail and the second rail.
In an exemplary embodiment of the present disclosure, the first straight portion includes a plurality of squeegee units, which are detachably connected; the first straight-moving part is provided with a first driving device, and the first driving device is used for driving the scraper of each scraper unit to drive coal to move;
initiating coal transport of a first of said right angle scrapers comprising:
and starting the first driving device to enable the coal falling on the first straight part of the first right-angle scraper to be conveyed to the conveying belt through the turning part and the second straight part of the first right-angle scraper.
In an exemplary embodiment of the disclosure, the turning part is further provided with a second driving device for driving the scraper of the turning part to drive the coal to move;
after the first driving device is started, the staging method further comprises:
and starting the second driving device to accelerate the conveying speed of the coal on the turning part to the second straight part.
In an exemplary embodiment of the present disclosure, the second straight portion includes one or more of the squeegee units.
In an exemplary embodiment of the present disclosure, a reversed loader and a crusher are sequentially connected to the second rectilinear portion; the reversed loader and the crusher are both arranged higher than the conveying belt, the reversed loader is used for lifting the coal on the second straight part and then dropping the coal into the crusher, and the crusher is used for crushing large blocks of coal and dropping the coal onto the conveying belt;
before the coal on the first straight portion of the first right-angle scraper conveyor is transported to the transportation belt through the turning portion and the second straight portion of the first right-angle scraper conveyor in sequence, the sectional transportation method further comprises:
and starting the reversed loader and the crusher to crush the coal on the second straight-moving part and then drop the crushed coal onto the conveying belt.
In an exemplary embodiment of the present disclosure, the turning portion is a circular arc.
According to the sectional transportation method for the N00 overlong working face, the number of the right-angle scraper machines is multiple, the right-angle scraper machines are sequentially arranged along the sliding direction of the coal mining machine, and the first straight-going part of each right-angle scraper machine is connected to the turning part of the previous right-angle scraper machine.
In the implementation process, the coal mining machine is firstly positioned on the first right-angle scraper machine, at the moment, the coal mining machine starts to mine coal on the overlong working face opposite to the first right-angle scraper machine, and the coal falls onto the first straight-going part of the first right-angle scraper machine; then, the coal mining machine spans from the first right-angle scraper to the second right-angle scraper along the sliding direction, and begins to mine coal on the overlong working face opposite to the second right-angle scraper; then, the first right-angle scraper starts to convey coal so that the coal falling on the first straight portion is conveyed to the conveying belt through the turning portion and the second straight portion in sequence.
Therefore, the right-angle scraper machines are mutually overlapped, each right-angle scraper machine is provided with a power device, the problem of limited power of a scraper machine system is effectively solved, each right-angle scraper machine is connected with an infinitely long conveying belt by utilizing the characteristic that the conveying belt can be infinitely extended, the segmented transportation of a working face in the N00 construction method can be realized, and the ultra-long transportation of coal in the N00 construction method is further realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 is a schematic diagram of the arrangement of a shearer, a right angle scraper, a conveyor belt, a connecting track, a reversed loader, and a crusher according to an embodiment of the disclosure.
Fig. 2 is a schematic flow chart of a segmental transportation method for an N00 super-long working face according to an embodiment of the present disclosure.
Fig. 3 is a schematic view of the working state of the connecting rail when the coal mining machine crosses the right-angle scraper conveyor according to the embodiment of the disclosure.
Fig. 4 is a schematic view of the working state of the connecting rail when the right-angle scraper conveyor of the embodiment of the disclosure conveys coal.
In the figure: 1. an ultra-long working face; 2. a coal mining machine; 20. a machine head; 3. a right-angle scraper machine; 31. a first straight section; 311. a squeegee unit; 3110. a squeegee; 312. a first driving device; 32. a corner portion; 321. a second driving device; 33. a second straight section; 4. a conveyor belt; 5. connecting the rails; 51. a first track; 52. a second track; 6. a reversed loader; 7. a crusher.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the primary technical ideas of the disclosure.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is turned upside down, the "up" component will become the "down" component. Other relative terms, such as "high," "low," "top," "bottom," "left," "right," and the like are also intended to have similar meanings.
When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure. The terms "a," "an," "the," and the like are used to denote the presence of one or more elements/components/parts; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc. The terms "first" and "second", etc. are used merely as labels, and are not limiting on the number of their objects.
The sectional transportation method for the N00 overlong working face is provided in the disclosed embodiment, and can overcome the problem of limited power of a scraper system, so that the overlong transportation of coal in the N00 method is realized.
As shown in fig. 1, the coal on the ultra-long working face 1 falls onto the right-angle scraper 3 after being mined by the head 20 of the coal mining machine 2, and the right-angle scraper 3 can convey the coal falling thereon to the conveying belt 4 and then convey the coal out through the conveying belt 4.
Specifically, the right-angle flight 3 may include a first straight portion 31, a return portion 32, and a second straight portion 33, wherein:
the first straight-going part 31 is arranged parallel to the overlong working face 1, and the coal mining machine 2 can be connected to the first straight-going part 31 in a sliding mode, so that the coal mining machine 2 can move while mining coal, and coal of the overlong working face 1 opposite to the right-angle scraper conveyor 3 can fall onto the first straight-going part 31.
In addition, the first rectilinear portion 31 includes a plurality of squeegee units 311, and the plurality of squeegee units 311 are detachably connected, thereby enabling an operator to adjust the length of the first rectilinear portion 31. The first straight section 31 is provided with a first driving device 312. As shown in fig. 1, a first driving device 312 may be disposed at an end of the first straight portion 31 for driving the scraper 3110 of each scraper unit 311 to move coal, and will not be described in detail herein.
The turn portion 32 is used to connect the first straight portion 31 and the second straight portion 33. For example, the turning part 32 may be circular arc-shaped, so that the coal transported from the first straight part 31 can be smoothly transported to the second straight part 33 through the turning part 32; of course, the corner portion 32 may have other shapes, and is not particularly limited herein.
The turning portion 32 may be provided with a second driving device 321 for driving the scraper 3110 of the turning portion 32 to move the coal, which will not be described in detail herein.
The second rectilinear portion 33 may be arranged perpendicular to the first rectilinear portion 31, while the second rectilinear portion 33 is perpendicular to the conveyor belt 4. Therefore, the coal on the ultra-long working face 1 is mined by the coal mining machine 2 and falls onto the first straight part 31 of the right-angle scraper 3, then the first driving device 312 and the second driving device 321 transport the coal falling onto the first straight part 31 onto the transport belt 4 through the turning part 32 and the second straight part 33, and then the coal is transported out through the transport belt 4, thereby completing the transportation process of the coal.
In addition, the second straight portion 33 may also include one or more scraper units 311, and the specific number of the scraper units 311 is adjusted by the operator as required, and is not limited herein.
It should be noted that the number of the right-angle blade scrapers 3 is plural, a plurality of the right-angle blade scrapers 3 are sequentially arranged along the sliding direction of the shearer 2, and the first straight portion 31 of each right-angle blade scraper 3 is connected to the turning portion 32 of the previous right-angle blade scraper 3.
As shown in fig. 3, a connecting rail 5 may be provided between the turning portion 32 of the first right-angle flight 3 and the first straight portion 31 of the second right-angle flight 3. In particular, the connecting track 5 may comprise a first track 51 and a second track 52, wherein:
the first rail 51 may be disposed close to and parallel to the ultralong work surface 1, that is, the first rail 51 is used to connect the turning portion 32 of the first right-angle scraper 3 and the first straight portion 31 of the second right-angle scraper 3 close to one side of the ultralong work surface 1; the second rail 52 may be disposed away from the working surface 1 and parallel to the first rail 51, that is, the second rail 52 is used to connect the turning portion 32 of the first right-angle scraper 3 and the first straight portion 31 of the second right-angle scraper 3 on the side away from the working surface 1.
Therefore, the right-angle scraper machines 3 can be mutually overlapped, each right-angle scraper machine 3 is provided with a power device (the first driving device 312 and the second driving device 321) of the right-angle scraper machine, the problem that the power of a scraper machine system is limited is effectively solved, each right-angle scraper machine 3 is connected with an infinitely long conveying belt 4 by utilizing the characteristic that the conveying belt 4 can be infinitely extended, the segmented conveying of a working face in the N00 construction method can be realized, and the ultra-long conveying of coal in the N00 construction method is further realized.
In the implementation process, the coal mining machine 2 is firstly positioned on the first right-angle scraper machine 3, at the moment, the coal mining machine 2 starts to mine coal on the overlong working surface 1 opposite to the first right-angle scraper machine 3, and the coal falls onto the first straight-going part 31 of the first right-angle scraper machine 3; then, the coal mining machine 2 spans from the first right-angle scraper conveyor 3 to the second right-angle scraper conveyor 3 along the sliding direction, and begins to mine coal on the overlong working face 1 opposite to the second right-angle scraper conveyor 3; next, the first right-angle scraper 3 starts coal transportation so that the coal dropped on the first straight portion 31 is transported to the conveyor belt 4 through the turn portion 32 and the second straight portion 33 in this order.
Thus, as shown in fig. 2, the staging method may include the steps of:
and step S110, starting coal mining of a coal mining machine on the first right-angle scraper so that coal on the overlong working face falls onto the first straight-going part of the first right-angle scraper.
Step S120, enabling the coal mining machine to cross from the first right-angle scraper to the second right-angle scraper along the sliding direction;
and step S130, starting coal conveying of the first right-angle scraper so that the coal falling on the first straight part of the first right-angle scraper is conveyed to the conveying belt through the turning part and the second straight part of the first right-angle scraper in sequence.
The following is a detailed description of the steps of the segmental transportation method provided by the embodiment of the present disclosure:
in step S110, the shearer 2 starts coal mining, and the coal on the overlong face 1 falls onto the first straight section 31 of the first right-angle scraper 3, which will not be described in detail herein.
In step S120, the shearer 2 is caused to cross from the first right-angle scraper 3 to the second right-angle scraper 3 in the sliding direction.
Specifically, step S120 may include the steps of:
step S1201, mounting the first rail 51 and the second rail 52 as shown in fig. 3;
step S1202, the shearer 2 is driven to move so that the shearer 2 can traverse in the sliding direction from the first straight portion 31 of the first right-angle scraper 3 to the first straight portion 31 of the second right-angle scraper 3 via the first rail 51 and the second rail 52, which will not be described in detail herein.
In step S130, the first right-angle flight 3 is started to convey coal so that the coal dropped on the first straight portion 31 is conveyed to the conveyor belt 4 through the turn portion 32 and the second straight portion 33 in this order.
It should be noted that, before step S130, the staging method according to the embodiment of the present disclosure may further include: the second rail 52 (shown in fig. 4) is removed so that the coal dropped on the first straight portion 31 can pass through the turn portion 32 relatively smoothly. Of course, the first rail 51 may be removed at the same time to achieve recycling of the first and second rails 51 and 52.
Specifically, step S130 may include the steps of:
step S1301, starting the first driving device 312 to move the coal dropped on the first straight portion 31 to the conveyor belt 4 through the turning portion 32 and the second straight portion 33;
in step S1302, the second driving device 321 is activated to increase the speed of conveying the coal on the turning part 32 to the second straight part 33, which will not be described in detail herein.
It should be noted that the second straight portion 33 of each right-angle scraper 3 may be connected in turn with a transfer conveyor 6 and a crusher 7, and the transfer conveyor 6 and the crusher 7 are both arranged higher than the conveyor belt 4, wherein:
the transfer conveyor 6 is used for lifting the coal on the second straight portion 33 and dropping the coal into the crusher 7, and the crusher 7 is used for crushing large pieces of coal and then dropping the coal onto the conveyor belt 4, which will not be described in detail herein.
Therefore, before the coal on the first straight portion 31 of the right-angle scraper 3 is transported to the transport belt 4 through the turning portion 32 and the second straight portion 33 in sequence, the segmental transport method of the embodiment of the present disclosure further includes:
the transfer conveyor 6 and the crusher 7 are activated so that the coal on the second straight portion 33 falls onto the conveyor belt 4 after being crushed, and will not be described in detail here.
It is to be understood that the disclosure is not limited in its application to the details of construction and the arrangements of the components set forth in the specification. The present disclosure is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications are within the scope of the present disclosure. It should be understood that the disclosure disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present disclosure. The embodiments described in this specification illustrate the best mode known for carrying out the disclosure and will enable those skilled in the art to utilize the disclosure.
Claims (10)
1. A staging method for an N00 ultralong face, coal on the ultralong face being mined by a coal mining machine and falling onto a right-angle scraper conveyor capable of transporting the coal falling thereon onto a transport belt, the coal mining machine being slidably connected to the right-angle scraper conveyor; the right-angle scraper machine comprises a first straight-going part, a second straight-going part and a turning part for connecting the first straight-going part and the second straight-going part, the coal mining machine is connected with the first straight-going part in a sliding mode, and the second straight-going part is perpendicular to the first straight-going part; the quantity of right angle scraper is a plurality of, and is a plurality of the right angle scraper is followed the slip direction of coal-winning machine arranges in proper order, and each the first straight portion of right angle scraper connects in the previous the portion of turning round of right angle scraper, its characterized in that, the segmentation transportation method includes:
initiating coal mining by said shearer located on a first of said right angle fliers such that coal on said ultralong face falls onto a first straight run of a first of said right angle fliers;
causing said shearer to traverse in said sliding direction from a first of said right angle flights to a second of said right angle flights;
and starting coal conveying by the first right-angle scraper so that the coal falling on the first straight part of the first right-angle scraper is conveyed to the conveying belt sequentially through the turning part and the second straight part of the first right-angle scraper.
2. The staging method of claim 1, wherein a connecting track is provided between the turn of a first of said right angle flights and the first straight run of a second of said right angle flights;
the shearer spans from the first straight portion of a first one of the right-angle scrapers to the first straight portion of a second one of the right-angle scrapers in the sliding direction via the connecting rails.
3. The staging method of claim 2, wherein the connecting track includes a first track adjacent and parallel to the lengthy work surface and a second track remote from the lengthy work surface and parallel to the first track;
causing said shearer to traverse from a first of said right angle flights in said sliding direction to a second of said right angle flights, comprising:
mounting the first rail and the second rail;
driving the shearer to move so that the shearer can traverse through the first and second rails from the first straight portion of a first one of the right-angle scrapers to the first straight portion of a second one of the right-angle scrapers in the sliding direction.
4. The staging method of claim 3, further comprising, prior to initiating coal conveyance by a first of the right angle scrapers:
and removing the second rail so that coal falling on the first straight portion of the first right-angle scraper can be conveyed to the second straight portion of the first right-angle scraper through the turning portion of the first right-angle scraper.
5. The staging method of claim 4, further comprising, after removing the second track:
and the first rail is disassembled to realize the recycling of the first rail and the second rail.
6. The staging method of claim 1, wherein the first straight section includes a plurality of screed units, the plurality of screed units being detachably connected; the first straight-moving part is provided with a first driving device, and the first driving device is used for driving the scraper of each scraper unit to drive coal to move;
initiating coal transport of a first of said right angle scrapers comprising:
and starting the first driving device to enable the coal falling on the first straight part of the first right-angle scraper to be conveyed to the conveying belt through the turning part and the second straight part of the first right-angle scraper.
7. The method of claim 6, wherein the corner portion is further provided with a second driving device for driving the scraper of the corner portion to move the coal;
after the first driving device is started, the staging method further comprises:
and starting the second driving device to accelerate the conveying speed of the coal on the turning part to the second straight part.
8. The staging method of claim 6, wherein the second straight run includes one or more of the screed units.
9. The staging method of claim 7, wherein a transfer conveyor and a crusher are connected in sequence to the second straight run; the reversed loader and the crusher are both arranged higher than the conveying belt, the reversed loader is used for lifting the coal on the second straight part and then dropping the coal into the crusher, and the crusher is used for crushing large blocks of coal and dropping the coal onto the conveying belt;
before the coal on the first straight portion of the first right-angle scraper conveyor is transported to the transportation belt through the turning portion and the second straight portion of the first right-angle scraper conveyor in sequence, the sectional transportation method further comprises:
and starting the reversed loader and the crusher to crush the coal on the second straight-moving part and then drop the crushed coal onto the conveying belt.
10. The staging method of claim 1, wherein the turn is rounded.
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| CN202010311971.3A CN111456804B (en) | 2020-04-20 | 2020-04-20 | Segmental transportation method for N00 super-long working face |
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| CN104995111A (en) * | 2012-11-02 | 2015-10-21 | 卡特彼勒环球矿业欧洲有限公司 | Tensible return unit for apron conveyor |
| CN104343451A (en) * | 2013-08-08 | 2015-02-11 | 王洪伟 | Conveyor |
| US20160118828A1 (en) * | 2014-10-28 | 2016-04-28 | General Electric Company | System and method for transferring energy between vehicles |
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